WO1992018363A1 - Systeme de freinage comportant un dispositif d'antipatinage au freinage et d'antipatinage a l'acceleration (asr) - Google Patents

Systeme de freinage comportant un dispositif d'antipatinage au freinage et d'antipatinage a l'acceleration (asr) Download PDF

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Publication number
WO1992018363A1
WO1992018363A1 PCT/EP1992/000357 EP9200357W WO9218363A1 WO 1992018363 A1 WO1992018363 A1 WO 1992018363A1 EP 9200357 W EP9200357 W EP 9200357W WO 9218363 A1 WO9218363 A1 WO 9218363A1
Authority
WO
WIPO (PCT)
Prior art keywords
brake
line
valve
pressure
wheel
Prior art date
Application number
PCT/EP1992/000357
Other languages
German (de)
English (en)
Inventor
Erhard Beck
Original Assignee
Alfred Teves Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19914112821 external-priority patent/DE4112821A1/de
Application filed by Alfred Teves Gmbh filed Critical Alfred Teves Gmbh
Priority to JP92504903A priority Critical patent/JPH05508134A/ja
Priority to DE59204121T priority patent/DE59204121D1/de
Priority to EP92904967A priority patent/EP0535176B1/fr
Priority to US07/960,411 priority patent/US5299858A/en
Publication of WO1992018363A1 publication Critical patent/WO1992018363A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/48—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition connecting the brake actuator to an alternative or additional source of fluid pressure, e.g. traction control systems
    • B60T8/4809—Traction control, stability control, using both the wheel brakes and other automatic braking systems
    • B60T8/4827—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems
    • B60T8/4863—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems closed systems
    • B60T8/4872—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems closed systems pump-back systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system

Definitions

  • the present invention is based on a brake system according to the preamble of claim 1.
  • DE 38 32 023 AI describes a generic anti-lock brake system which works on the return conveyor principle.
  • the pump is self-priming in order to be able to deliver traction control through the brake line via the tandem master cylinder from the pressure medium reservoir into the wheel brake of the spinning wheel.
  • a vacuum is generated in the wheel brake by the self-priming of the pump.
  • a non-return valve opening in the suction direction is installed in the return line of the wheel brake leading to the suction side of the pump, the inlet pressure of which is at least as high as the atmospheric pressure.
  • the pump When the pump sucks through the brake line and the tandem master cylinder in traction control mode, it generates about 0.8 bar negative pressure, which - depending on the throttling effects that occur between the container and the connection of the suction line to the brake line - is weakened until the brake of the non-driven one
  • the wheel can propagate if the isolating valve is located between the supply lines to the wheel brakes of the driven and the non-driven wheel. However, if one viewed both wheel brakes from the master cylinder and arranged them beyond the isolating valve, then that of the non-driven wheel would also be actuated in the traction control system.
  • a complicated switching logic which closes the corresponding inlet valve during traction control, is comparatively complex and expensive.
  • the object of the invention is therefore to reliably protect the brakes of the non-driven wheels in the traction control system against negative pressure and against pressure build-up, without additional aids.
  • the principle of the invention is therefore based on the skillful arrangement of the brake of the non-driven wheel and two check valves. Without actuation of the inlet valves, only the brake of the driven wheel is filled by the pump pressure through the isolating valve between the feed lines to the inlet valves in the case of traction control.
  • the wheel brake of the non-driven wheel can only be filled via its supply line on the master cylinder side, that is, only during a pedal-operated braking operation.
  • the pressure medium is removed via an auxiliary line to the pressure side of the pump. No negative pressure can occur on this side of the isolating valve. Even if check valves are provided parallel to the inlet valves for safety reasons - this is the rule - the wheel brake of the non-driven wheel is also protected.
  • the brake line 3 leads through the separating valve 4 to the inlet valve 5 of the wheel brake 7 of a driven wheel.
  • the branch line 11 branches off to the inlet valve 6 of the wheel brake 8 of a non-driven wheel.
  • the return line 12 leads to the low-pressure accumulator 13 and from there to the suction side of the pump 14. From this the pressure line 15 runs via the pressure valve 27 to the brake line 3, into which it runs on the side of the separating valve 4 facing away from the master cylinder 1 opens.
  • the pump For traction control, the pump has a suction line 16 from the brake line 3 to its suction side, which branches off between the master cylinder 1 and the isolating valve 4 and is provided with the intake switching valve 17.
  • the suction valve 18 and overpressure valve 19 represent special safety measures.
  • the suction valve 18 has an admission pressure which is greater than a 1 bar and prevents underpressure from forming in the return line 12.
  • the overpressure valve 19 only opens at an admission pressure which is higher than the brake pressure to be applied for traction control, that is to say approximately between 60 bar and 160 bar. It relieves the lines by releasing pressure medium into the master cylinder 1 if the pump pressure should ever build up.
  • the switching valves 4, 5, 6, 9, 10 and 17 are constantly in the basic position shown. Only the intake switching valve 17 is closed by the master cylinder pressure.
  • the pressure-open intake switching valve has the advantage that the pump can draw from the tandem master cylinder at any time, unless the driver is braking. Instead, a valve that is closed without pressure and can be opened by the vacuum on the pump side, a mechanically - e.g. via the brake pedal travel - activated valve or an electromagnetically actuated SO or SG valve can be used.
  • a mechanically - e.g. via the brake pedal travel - activated valve or an electromagnetically actuated SO or SG valve can be used.
  • the pressure in the wheel brakes is built up and reduced again via the inlet valves 5 and 6.
  • pressure medium can be discharged into the low-pressure accumulator 13 in a known manner via the outlet valves 9 and 10 and from there fed back to the brake line 3 with the aid of the pump 14.
  • the master cylinder 1 and the lines are depressurized.
  • the intake switching valve 17 thus remains in its open basic position, so that the pump 14 can suck in from the pressure medium reservoir 2 via the brake line 3 and the master cylinder 1 and can deliver it into the brake line 3 via the pressure line 15.
  • the isolating valve 4 is closed, so that only the wheel brake 7 of the driven wheel is filled and a backflow of the pressure medium into the master cylinder 1 is blocked.
  • the check valve 20 in the branch line 11 only allows the wheel brake to be filled from the side of the separating valve 4 facing the master cylinder 1.
  • the new auxiliary line 22 was placed on the pressure side of the pump 14.
  • the check valve 21 has been inserted.
  • the pressure in the wheel brake 7 is regulated via the inlet valve 5 and the outlet valve 9. So that the pressure in the wheel brake 7 does not drop below atmospheric pressure even when the outlet valve 9 is open, the suction valve 18 has a pre-pressure of slightly more than 1 bar.
  • the check valve 25, opens at a pressure difference of approximately 0.2 bar, so that the pump can suck from the unpressurized pressure medium container 2. So that during the traction control system, ie when the isolating valve 4 is closed, a sudden brake application of the pedal brake 8 is also activated, the non-return valve 26 is connected in parallel with the isolating valve 4.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Regulating Braking Force (AREA)

Abstract

L'invention concerne un système de freinage qui travaille selon le principe de rétroaction et qui possède, pour les fonctions ABS et ASR, une pompe commune à auto-amorçage (14) qui, dans le cas de l'ASR, aspire par le maître cylindre (1) du fluide du réservoir de stockage du fluide de pression (2). Dans le cas d'une répartition diagonale des circuits de freinage, on évite, avec l'invention, la formation d'une dépression dans le frein (8) de la roue non motrice par le fait qu'il est prévu deux soupapes de retenue (20, 21) et une conduite auxiliaire (22). Grâce à ces équipements, lorsque la soupape de séparation de l'ASR (4) est fermée, il peut se produire uniquement, depuis le côté aspiration de la pompe (14), une admission de fluide de pression au niveau du frein (8) de la roue non motrice, tandis que la chute de pression ne peut s'effectuer que vers le côté refoulement de la pompe (14).
PCT/EP1992/000357 1991-04-19 1992-02-20 Systeme de freinage comportant un dispositif d'antipatinage au freinage et d'antipatinage a l'acceleration (asr) WO1992018363A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP92504903A JPH05508134A (ja) 1991-04-19 1992-02-20 ブレーキスリップ及びトラクションスリップの双方を制御する制御装置を備えるブレーキシステム
DE59204121T DE59204121D1 (de) 1991-04-19 1992-02-20 Bremsanlage mit einer einrichtung zum regeln sowohl des bremsschlupfes als auch des antriebsschlupfes.
EP92904967A EP0535176B1 (fr) 1991-04-19 1992-02-20 Systeme de freinage comportant un dispositif d'antipatinage au freinage et d'antipatinage a l'acceleration (asr)
US07/960,411 US5299858A (en) 1991-04-19 1992-02-20 Brake system with a device for controlling both the brake slip and the traction slip

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4112821.4 1991-04-19
DE19914112821 DE4112821A1 (de) 1990-10-05 1991-04-19 Bremsanlage mit einer einrichtung zum regeln sowohl des bremsschlupfes als auch des antriebsschlupfes

Publications (1)

Publication Number Publication Date
WO1992018363A1 true WO1992018363A1 (fr) 1992-10-29

Family

ID=6429941

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1992/000357 WO1992018363A1 (fr) 1991-04-19 1992-02-20 Systeme de freinage comportant un dispositif d'antipatinage au freinage et d'antipatinage a l'acceleration (asr)

Country Status (5)

Country Link
US (1) US5299858A (fr)
EP (1) EP0535176B1 (fr)
JP (1) JPH05508134A (fr)
DE (1) DE59204121D1 (fr)
WO (1) WO1992018363A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0668199A1 (fr) * 1994-02-16 1995-08-23 Sumitomo Electric Industries, Ltd. Dispositif de commande de la pression de fluide de freinage
WO1996010506A1 (fr) * 1994-09-30 1996-04-11 Itt Automotive Europe Gmbh Systeme de freinage hydraulique a regulation de la stabilite de route
WO1996023681A1 (fr) * 1995-02-01 1996-08-08 Itt Automotive Europe Gmbh Systeme hydraulique de freinage de vehicules a moteur a antiderapeur automatique et/ou a actionnement automatique des freins servant a regler l'entrainement et/ou la dynamique de conduite
WO1997002165A1 (fr) * 1995-07-06 1997-01-23 Itt Automotive Europe Gmbh Systeme de freinage hydraulique a regulation anti-patinage
EP0706923A3 (fr) * 1994-10-12 1997-02-26 Sumitomo Electric Industries Dispositif de commande de la pression de fluide de freinage
WO1997010980A1 (fr) * 1994-09-03 1997-03-27 Itt Automotive Europe Gmbh Systeme de freinage hydraulique a actionnement exterieur
WO1997013670A1 (fr) * 1995-10-12 1997-04-17 Itt Automotive Europe Gmbh Procede permettant de faire fonctionner un systeme de freinage hydraulique
WO1997013668A1 (fr) * 1995-10-07 1997-04-17 Itt Automotive Europe Gmbh Systeme de freinage hydraulique avec dispositif antipatinage pour vehicules a moteur
WO1998000323A1 (fr) * 1996-07-01 1998-01-08 Itt Manufacturing Enterprises, Inc. Installation de freinage hydraulique pourvue d'une pompe de recirculation
WO1998013242A1 (fr) * 1996-09-23 1998-04-02 Itt Manufacturing Enterprises, Inc. Installation de freinage hydraulique a regulation antipatinage pour automobiles
US5984430A (en) * 1996-02-21 1999-11-16 Aisin Seiki Kabushiki Kaisha Hydraulic braking system for a vehicle
US6220675B1 (en) * 1996-09-23 2001-04-24 Continental Teves Ag & Co., Ohg Hydraulic brake system with hydraulic servo brake

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5609401A (en) * 1995-02-21 1997-03-11 General Motors Corporation Proportional braking system with dual poppet valves
US5884985A (en) * 1995-07-20 1999-03-23 Kelsey-Hayes Traction control system having pilot operated valves
US5882090A (en) * 1995-07-20 1999-03-16 Kelsey-Hayes Company Traction control system having pilot operated valves
US6132013A (en) * 1996-09-25 2000-10-17 Kelsey-Hayes Co. Anti-lock and traction control braking system using non-driven wheel brake de-isolation
US5984431A (en) * 1996-12-31 1999-11-16 Kelsey Hayes Company Pumpless anti-lock braking system using six solenoid actuated valves
DE19700410A1 (de) * 1997-01-09 1998-07-16 Teves Gmbh Alfred Hydraulikaggregat
DE102016218337A1 (de) * 2016-09-23 2018-03-29 Continental Teves Ag & Co. Ohg Verfahren zum Betreiben eines Bremssystems

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3439408C1 (de) * 1984-10-27 1986-07-17 Daimler-Benz Ag, 7000 Stuttgart Einrichtung zur Aufladung des Betriebsspeichers einer Vortriebs-Regeleinrichtung an einem Kraftfahrzeug, das auch mit einem Antiblockiersystem ausgerüstet ist
FR2601636A1 (fr) * 1986-07-18 1988-01-22 Teves Gmbh Alfred Systeme de freinage a regulation du glissement pour vehicule automobile a un essieu moteur
GB2218480A (en) * 1988-05-11 1989-11-15 Bosch Gmbh Robert Vehicle anti-skid and drive-slip control system
DE3832023A1 (de) * 1988-09-21 1990-03-22 Bosch Gmbh Robert Verfahren zur anfahrschlupfregelung (asr)
EP0376788A1 (fr) * 1988-12-28 1990-07-04 Alliedsignal Europe Services Techniques Circuit hydraulique de freinage pour véhicule automobile, muni d'un dispositif d'antiblocage et d'un dispositif d'antipatinage de roues

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3940177C2 (de) * 1989-12-05 1999-03-18 Teves Gmbh Alfred Schlupfgeregelte hydraulische Fahrzeugbremsanlage
US5234264A (en) * 1990-03-23 1993-08-10 Robert Bosch Gmbh Brake system
JPH03284458A (ja) * 1990-03-30 1991-12-16 Aisin Seiki Co Ltd 制動液圧制御装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3439408C1 (de) * 1984-10-27 1986-07-17 Daimler-Benz Ag, 7000 Stuttgart Einrichtung zur Aufladung des Betriebsspeichers einer Vortriebs-Regeleinrichtung an einem Kraftfahrzeug, das auch mit einem Antiblockiersystem ausgerüstet ist
FR2601636A1 (fr) * 1986-07-18 1988-01-22 Teves Gmbh Alfred Systeme de freinage a regulation du glissement pour vehicule automobile a un essieu moteur
GB2218480A (en) * 1988-05-11 1989-11-15 Bosch Gmbh Robert Vehicle anti-skid and drive-slip control system
DE3832023A1 (de) * 1988-09-21 1990-03-22 Bosch Gmbh Robert Verfahren zur anfahrschlupfregelung (asr)
EP0376788A1 (fr) * 1988-12-28 1990-07-04 Alliedsignal Europe Services Techniques Circuit hydraulique de freinage pour véhicule automobile, muni d'un dispositif d'antiblocage et d'un dispositif d'antipatinage de roues

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0668199A1 (fr) * 1994-02-16 1995-08-23 Sumitomo Electric Industries, Ltd. Dispositif de commande de la pression de fluide de freinage
US5538333A (en) * 1994-02-16 1996-07-23 Sumitomo Electric Industries, Ltd. Brake fluid pressure controller
WO1997010980A1 (fr) * 1994-09-03 1997-03-27 Itt Automotive Europe Gmbh Systeme de freinage hydraulique a actionnement exterieur
WO1996010506A1 (fr) * 1994-09-30 1996-04-11 Itt Automotive Europe Gmbh Systeme de freinage hydraulique a regulation de la stabilite de route
EP0706923A3 (fr) * 1994-10-12 1997-02-26 Sumitomo Electric Industries Dispositif de commande de la pression de fluide de freinage
WO1996023681A1 (fr) * 1995-02-01 1996-08-08 Itt Automotive Europe Gmbh Systeme hydraulique de freinage de vehicules a moteur a antiderapeur automatique et/ou a actionnement automatique des freins servant a regler l'entrainement et/ou la dynamique de conduite
WO1997002165A1 (fr) * 1995-07-06 1997-01-23 Itt Automotive Europe Gmbh Systeme de freinage hydraulique a regulation anti-patinage
WO1997013668A1 (fr) * 1995-10-07 1997-04-17 Itt Automotive Europe Gmbh Systeme de freinage hydraulique avec dispositif antipatinage pour vehicules a moteur
WO1997013670A1 (fr) * 1995-10-12 1997-04-17 Itt Automotive Europe Gmbh Procede permettant de faire fonctionner un systeme de freinage hydraulique
US6145940A (en) * 1995-10-12 2000-11-14 Itt Manufacturing Enterprises, Inc. Process for operating a hydraulic brake system
US5984430A (en) * 1996-02-21 1999-11-16 Aisin Seiki Kabushiki Kaisha Hydraulic braking system for a vehicle
WO1998000323A1 (fr) * 1996-07-01 1998-01-08 Itt Manufacturing Enterprises, Inc. Installation de freinage hydraulique pourvue d'une pompe de recirculation
US6386646B1 (en) 1996-07-01 2002-05-14 Continental Teves Ag & Co., Ohg Hydraulic brake system with a recirculating pump
WO1998013242A1 (fr) * 1996-09-23 1998-04-02 Itt Manufacturing Enterprises, Inc. Installation de freinage hydraulique a regulation antipatinage pour automobiles
US6135579A (en) * 1996-09-23 2000-10-24 Continental Teves Ag & Co. Ohg Hydraulic automotive vehicle brake system with antiskid controller
US6220675B1 (en) * 1996-09-23 2001-04-24 Continental Teves Ag & Co., Ohg Hydraulic brake system with hydraulic servo brake

Also Published As

Publication number Publication date
EP0535176B1 (fr) 1995-10-25
EP0535176A1 (fr) 1993-04-07
DE59204121D1 (de) 1995-11-30
US5299858A (en) 1994-04-05
JPH05508134A (ja) 1993-11-18

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